Encode image in base64 and send to a server

I have a problem sending an image base64 encoded string. I have always the same error "Unsupported marker type 0xb7" in the server and the response is always "java.io.FileNotFoundException"

/** * This method convert a image in a string base64 encoded * * @return String Base64 */ public final static String getImageBase64(String fileName){ String encodedImage = null; Bitmap bm = BitmapFactory.decodeFile(Constants.ROUTE_IMAGES + fileName); ByteArrayOutputStream baos = new ByteArrayOutputStream(); if (bm != null){//Encuentra la imagen bm.compress(Bitmap.CompressFormat.JPEG, 100, baos); byte[] b = baos.toByteArray(); try{ encodedImage = Base64.encodeToString(b, Base64.DEFAULT); }catch(Exception ex){ Log.d(TAG, "Error codificacion en Base64"); } }else{//NO encuentra la imagen Log.d(TAG, "bm is NULL"); } 

The next method is to send the data to a server

/** * Method to send information + image encoded base64 to a server and receive a response * * @param params String with information + image encoded base64 * @param urlToConnect URL server * @throws Exception */ public final static String sendData(String params, String urlToConnect) throws Exception{ URL url = null; HttpURLConnection conn = null; try{ url = new URL(urlToConnect); conn = (HttpURLConnection)url.openConnection(); conn.setRequestMethod("POST"); conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); conn.setRequestProperty("Content-Length", "" + Integer.toString(params.getBytes().length)); conn.setRequestProperty("Content-Language", "en-US"); conn.setUseCaches (false); conn.setDoInput(true); conn.setDoOutput(true); DataOutputStream wr = new DataOutputStream (conn.getOutputStream ()); wr.writeBytes (params); wr.flush (); wr.close (); if (conn.getResponseCode() == HttpURLConnection.HTTP_OK){ Log.d(TAG, "Conexión OK"); }else{ Log.d(TAG, "Conexión FALLIDA"); } //Get Response -- Resultado InputStream is = conn.getInputStream(); BufferedReader rd = new BufferedReader(new InputStreamReader(is), 8*Constants.K); String line; StringBuffer response = new StringBuffer(); if (rd.readLine() == null){ Log.d(TAG, "Resultado NULL"); } while((line = rd.readLine()) != null) { response.append(line); response.append('\r'); } rd.close(); Log.d(TAG, "Resultado: " + response.toString()); return response.toString(); }catch(IOException ex1){ Log.e(TAG, "Error en conexión ex1"); Log.d(TAG, ex1.toString()); throw new Exception("Error en conexión"); }catch(Exception ex2){ Log.e(TAG, "Error en conexión ex2"); throw new Exception("Error en conexión"); } }